Nepal is among the poorest and least developed countries in the world with 40% of its population living below the poverty line. Agriculture is the mainstay of the economy, providing a livelihood for over 80% of the population and accounting for 40% of GDP. Industrial activity mainly involves the processing of agricultural produce including jute, sugarcane, tobacco, and grain. Security concerns in the wake of the Maoist conflict have led to a decrease in tourism, a key source of foreign exchange. Nepal has considerable scope for exploiting its potential in hydropower and tourism, areas of recent foreign investment interest. Prospects for foreign trade or investment in other sectors will remain poor, however, because of the small size of the economy, its technological backwardness, its remoteness, its landlocked geographic location, its civil strife, and its susceptibility to natural disaster.